What are two improved crossbreds of cattle?

1. Beefmaster: The Beefmaster is a composite breed developed in the United States by the Lasater family in the 1930s. It is a cross between Hereford, Shorthorn, and Brahman cattle. The Beefmaster is known for its superior heat tolerance, feed efficiency, and meat quality.

2. Brangus: The Brangus is a composite breed developed in the United States by the American Brahman Breeders Association in the 1940s. It is a cross between Brahman and Angus cattle. The Brangus is known for its heat tolerance, disease resistance, and ability to produce tender, high-quality beef.